Audio listening system



FIG. 1 is a perspective view of an audio listening system showing our new design; the earpieces are mirror images;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a side perspective view of the first earpiece thereof, shown separately for purposes of illustration;

FIG. 5 is a side perspective view of the second earpiece thereof;

FIG. 6 is a top view of the second earpiece thereof; and,

FIG. 7 is a bottom view of the second earpiece thereof.

The broken lines in the Figures are for illustrative purposes only and show portions of an audio listening system or environment that form no part of the claimed design. 

CLAIM The ornamental design for an audio listening system, as shown and described. 